For the most part, a player who is good enough can flourish in any system. Kyle has played in a bunch of systems and has always performed admirably; Hughes racked up 10 sacks in Pettine's scheme and Schwartz's scheme; Dareus may not have been utilized properly in Rex's scheme, but his 2015 season really wasn't bad (of course we're hoping the 2016 issues were a fluke); and we can go on, including offense of course. Certainly some players who aren't all-world excel in certain schemes more than others, but I really don't think we have been using the draft to pick players based purely on our scheme.
In fact, all scheme-specific players or utility players we bring in are signed for very reasonable #'s (Jim Leonhard, Brandon Spikes, Zach Brown as examples). I believe we drafted Lawson, Ragland and Washington because we thought highly of them as players and not pieces in a specific defense. Heck, I think Shaq Lawson might even be better in a 4-3 than Rex's 3-4. Meanwhile I also think that they believe Lorax is a valuable player who can play a variety of roles on the defense. They didn't feel that way about Zach Brown, so they let him go and will figure something else out.